Mr. Daniel Earle reports

SOLARIS REPORTS 124M OF 0.82% CUEQ WITHIN BROADER INTERVAL, EXPANDING NORTHEAST EXTENSION OF 'INDICATIVE STARTER PIT'

Solaris Resources Inc. has released assay results from a series of holes aimed at growing the northeast extension of the indicative starter pit at its Warintza project in southeastern Ecuador. Highlights are listed herein, with detailed results in the attached table.

Highlights

Additional drilling has expanded the Northeast Extension of the 'Indicative Starter Pit' recently estimated at 180 Mt at 0.82% CuEq (Indicated) and 107 Mt at 0.73% CuEq (Inferred) within the Warintza Mineral Resource Estimate ("MRE"). This zone is characterized by near surface, high-grade mineralization and remains open for further growth with follow-up drilling underway.

SLS-66 was collared on a platform at the northeastern limit of the Warintza Central grid and drilled southwest into an open volume, returning 124m of 0.82% CuEq Superscript 1 within a broader interval of 622m of 0.42% CuEq Superscript 1 starting from surface

SLS-66 follows from previous holes SLS-63 and SLS-54, which were drilled from the same pad to the north and southeast and respectively returned high-grade intervals of 230m of 1.02% CuEq Superscript 1 and 356m of 0.73% CuEq Superscript 3 within broader intervals (refer to press releases dated Jul 20, 2022 and Apr 4, 2022 for details)

SLS-64 was collared on a platform at the northern limit of Warintza Central and drilled north-northeast into an open volume, returning 110m of 0.54% CuEq Superscript 1 from near surface within a broader interval of 440m of 0.48% CuEq Superscript 1, extending and broadening the zone to the north in this area

SLS-64 follows from previous holes SLS-62 and SLS-48, which were drilled from the same pad to the northeast and south and respectively returned high-grade intervals of 168m of 0.68% CuEq Superscript 1 and 100m of 1.64% CuEq Superscript 3 within broader intervals (refer to press releases dated Jul 20, 2022 and Feb 28, 2022 for details)

SLS-65, which is a step out hole from a new platform 200m to the north, has now been completed after operational delays with adjustments to the platform for drilling and assays are expected within the next four weeks

Mr. Jorge Fierro, Vice President, Exploration, commented: "Drilling from existing and recently-completed platforms in the Northeast Extension zone is a key driver in the expansion of the 'Indicative Starter Pit', and we look forward to reporting the next set of results in the near future as the backlog of assays pending is now resolved."

Technical Information and Quality Control & Quality Assurance

Sample assay results have been independently monitored through a quality control/quality assurance ("QA/QC") program that includes the insertion of blind certified reference materials (standards), blanks and field duplicate samples. Logging and sampling are completed at a secured Company facility located in Quito, Ecuador. Drill core is cut in half on site and samples are securely transported to ALS Labs in Quito. Sample pulps are sent to ALS Labs in Lima, Peru and Vancouver, Canada for analysis. Total copper and molybdenum contents are determined by four-acid digestion with AAS finish. Gold is determined by fire assay of a 30-gram charge. In addition, selected pulp check samples are sent to Bureau Veritas lab in Lima, Peru. Both ALS Labs and Bureau Veritas lab are independent of Solaris. Solaris is not aware of any drilling, sampling, recovery or other factors that could materially affect the accuracy or reliability of the data referred to herein. The drillhole data has been verified by Jorge Fierro, M.Sc., DIC, PG, using data validation and quality assurance procedures under high industry standards.

Qualified Person

The scientific and technical content of this press release has been reviewed and approved by Jorge Fierro, M.Sc., DIC, PG, Vice President Exploration of Solaris who is a "Qualified Person" as defined in National Instrument 43-101 Standards of Disclosure for Mineral Projects. Jorge Fierro is a Registered Professional Geologist through the SME (registered member #4279075).

About Solaris Resources Inc.

Solaris is a multi-asset exploration company, advancing a portfolio of copper and gold assets in the Americas, which includes: its primary focus, a world class large-scale resource with expansion and discovery potential at the Warintza Project in Ecuador; discovery potential at its Ricardo Project and optioned and owned grass-roots Tamarugo Project in Chile; discovery potential at its Capricho and Paco Orco projects in Peru; and significant leverage to increasing copper prices through its 60% interest in the La Verde joint-venture project with a subsidiary of Teck Resources in Mexico.

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